System and method for controlling torque during engine start operations in a hybrid vehicle

A control system and engine technology, applied to hybrid vehicles, engine control, engine starting, etc., can solve the problems of not providing fast response to control signals, coordinating engine torque control, and accurately controlling engine torque output, etc.

Active Publication Date: 2011-05-04
GM GLOBAL TECH OPERATIONS LLC
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional engine control systems do not control engine torque output as precisely as possible
Also, conventional engine control systems do not provide quick response to control signals, nor do they coordinate engine torque control among various devices that affect engine torque output

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for controlling torque during engine start operations in a hybrid vehicle
  • System and method for controlling torque during engine start operations in a hybrid vehicle
  • System and method for controlling torque during engine start operations in a hybrid vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The following description is merely exemplary in nature and is not intended to limit the invention, its application or uses in any way. For purposes of clarity, the same reference numbers will be used in the drawings to refer to like elements. As used herein, the phrase at least one of A, B, and C should be construed to mean a logical (A or B or C) using a non-exclusive logical or. It should be understood that steps within a method may be executed in different order without altering the principles of the present invention.

[0047] As used herein, the term "module" refers to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared processor, dedicated processor, or group processor) and memory, a combination of Logic circuits, and / or other suitable components that provide the described functionality.

[0048]Hybrid vehicles may include an internal combustion engine and an electric motor. When the vehicle's kinetic energy can be rec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention relates to a system and method for controlling torque during engine start operations in a hybrid vehicle. Concretely, provided is a control system for the hybrid vehicle that includes an internal combustion engine and an electric motor, including an engine speed control module, an air pressure control module, and an engine torque control module. The engine speed control module increases engine speed during a first calibration period based on a driver torque request and a predetermined torque threshold. The air pressure control module decreases intake manifold pressure (MAP) of the engine during a second calibration period based on the driver torque request and the predetermined torque threshold. The engine torque control module starts the engine during a period after the first and second calibration periods by activating N of M cylinders of the engine, wherein N is based on the driver torque request and the predetermined torque threshold.

Description

technical field [0001] The present invention relates to internal combustion engines, and more particularly, to systems and methods for controlling engine torque during engine cranking operations in hybrid vehicles. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the presently named inventors, to the extent described in this Background section and in respects that may not otherwise be described as prior art at the time of filing, is neither expressly nor impliedly identified as contradicting the present invention current technology. [0003] Internal combustion engines combust an air and fuel mixture within cylinders to drive pistons, which produce drive torque. Air flow into the gasoline engine is regulated via a throttle. More specifically, the throttle adjusts throttle area, which increases or decreases air flow into the engine. As the throttle area increases,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W20/00
CPCB60K6/485B60W10/06B60W10/08B60W20/00B60W2710/0605B60W2710/0644B60W2710/0666F02D41/0002F02D41/0087F02D41/062F02D2200/0406F02D2200/0414F02D2200/1004F02D2250/18F02N11/0814Y02T10/40Y02T10/62B60W20/10
Inventor L·王G·塔梅M·J·皮特施W·L·阿尔德里奇三世
Owner GM GLOBAL TECH OPERATIONS LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap